On October 18, as the Sunward SWDM130 rotary drilling rig began drilling, it marked that the Sichuan section of the State Grid Hami-Chongqing ±800 kV ultra-high-voltage direct current (UHVDC) transmission line project has entered the stage of full-scale construction.

The Hami-Chongqing ±800 kV UHVDC transmission project, one of China's first batch of large-scale wind and photovoltaic base outward transmission projects in the "desert, gobi and arid" areas, has attracted much attention. It is also China's fourth UHVDC project this year. The project starts in Hami City, Xinjiang, and ends in Yubei District, Chongqing, with a total length of 2,290 kilometers and an investment of 28.6 billion yuan. After completion, it is expected to transmit more than 36 billion kWh of electricity annually from Xinjiang to the Sichuan-Chongqing region, which can effectively optimize the energy supply pattern in Southwest China and enhance the supply guarantee capacity of the Southwest power grid.

At the groundbreaking ceremony and the first foundation pilot site, the person in charge of the construction party said that the climate and geographical environment along the entire Sichuan section of the project are variable, and the route passes through an icing area at an altitude of 2,000 meters, making construction difficult and demanding, thus placing higher requirements on equipment performance. The Sunward SWDM130 rotary drilling rig, custom-designed for the construction characteristics of power tower piles, is a battle-tested "strong performer" with rich practical experience. It has demonstrated its capabilities in the Jinshang-Hubei UHV project and the Sichuan-Chongqing UHV project, and is praised by customers as a "power tower pile artifact." This time, with its excellent product quality providing strong support, it will undoubtedly inject a "booster" into the smooth completion of the project.

Product advantages of the SWDM130 rotary drilling rig

Crossing mountains and ridges:Customized dedicated chassis, super-large travel driving force, 40% gradeability, adaptable to complex road conditions in the field, rural areas, and mountainous regions.

Maneuverable and flexible:Small tail swing radius, suitable for narrow mountain roads.

Multi-functional in one machine:The upper mast can be removed for low-headroom construction; the auxiliary winch can hoist reinforcement cages over large spans.

Convenient relocation:Transport of the entire machine with the mast does not exceed limits, fast conversion between drilling and transport states, and low cost; one-key mast lowering/raising.

Efficient and rapid:Dual-motor dual-reducer power head, high torque and high rotational speed.

In recent years, Sunward has continued to leverage its advantage of "pilot-style innovation," always adhering to the development philosophy of "engineering pulling equipment innovation" and "equipment supporting engineering construction progress," providing customers with more professional complete solutions. In the future, Sunward will also continue to achieve breakthroughs in key core technologies, and with the steady pace of high-quality development, build national heavy equipment and support national infrastructure construction and economic development.